A new Apple support document published two days ago recommends a temporary workaround solution for a weird auto-correct bug in iOS 11.1 where typing the letter “i” can replace it with the uppercase letter “A” and a question mark symbol.

UPDATE: the iOS 11.1.1 software update, released on November 9, has fixed the bug.

If you’ve updated to iOS 11.1 and find that when you type the letter “i” it autocorrects to the letter “A” with a question mark, simply create a new Text Replacement for the letter “i”: